diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/.editorconfig b/exercises/tiered_pricing/solutions/adrianliz/java/.editorconfig
new file mode 100644
index 00000000..219e4cd1
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/.editorconfig
@@ -0,0 +1,11 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.java]
+indent_size = 4
+indent_style = space
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/.github/workflows/workflow.yml b/exercises/tiered_pricing/solutions/adrianliz/java/.github/workflows/workflow.yml
new file mode 100644
index 00000000..38c6ded2
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/.github/workflows/workflow.yml
@@ -0,0 +1,22 @@
+name: Main Workflow
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - uses: actions/setup-java@v1
+      with:
+        java-version: 17
+
+    - name: Assemble
+      run: ./gradlew assemble --warning-mode all
+
+    - name: Check
+      run: ./gradlew check --warning-mode all
+
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/.gitignore b/exercises/tiered_pricing/solutions/adrianliz/java/.gitignore
new file mode 100644
index 00000000..165da6e1
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/.gitignore
@@ -0,0 +1,9 @@
+# Gradle
+.gradle
+build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+var/log/*
+!var/log/.gitkeep
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/Makefile b/exercises/tiered_pricing/solutions/adrianliz/java/Makefile
new file mode 100644
index 00000000..9bd15395
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/Makefile
@@ -0,0 +1,10 @@
+.PHONY: all
+all: build
+
+.PHONY: build
+build:
+	@./gradlew assemble --warning-mode all
+
+.PHONY: test
+test:
+	@./gradlew check --warning-mode all
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/README.md b/exercises/tiered_pricing/solutions/adrianliz/java/README.md
new file mode 100644
index 00000000..fd0ee890
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/README.md
@@ -0,0 +1,7 @@
+# Tiered pricing: Java
+
+Java codebase for [Tiered pricing](../../README.md) exercise.
+
+# Testing
+
+Run all tests with `make test`
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/build.gradle b/exercises/tiered_pricing/solutions/adrianliz/java/build.gradle
new file mode 100644
index 00000000..a60b0294
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/build.gradle
@@ -0,0 +1,37 @@
+plugins {
+    id 'org.springframework.boot' version '2.6.3'
+    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+    id 'java'
+}
+
+group = 'tv.codely'
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.apache.logging.log4j:log4j-core:2.17.1'
+    implementation 'com.vlkan.log4j2:log4j2-logstash-layout:1.0.5'
+    implementation 'org.springframework.boot:spring-boot-starter-web:2.6.4'
+    implementation 'org.json:json:20211205'
+
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test:2.6.4'
+    testImplementation 'com.github.javafaker:javafaker:1.0.2'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
+}
+
+test {
+    useJUnitPlatform()
+
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.jar b/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..87b738cb
Binary files /dev/null and b/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.properties b/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..e750102e
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/gradlew b/exercises/tiered_pricing/solutions/adrianliz/java/gradlew
new file mode 100755
index 00000000..af6708ff
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/gradlew.bat b/exercises/tiered_pricing/solutions/adrianliz/java/gradlew.bat
new file mode 100755
index 00000000..6d57edc7
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierPrice.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierPrice.java
new file mode 100644
index 00000000..091da845
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierPrice.java
@@ -0,0 +1,8 @@
+package tv.codely.checkout;
+
+public final class InvalidSubscriptionTierPrice extends RuntimeException {
+
+    public InvalidSubscriptionTierPrice(final String message) {
+        super(message);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierRange.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierRange.java
new file mode 100644
index 00000000..bc831903
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTierRange.java
@@ -0,0 +1,8 @@
+package tv.codely.checkout;
+
+public final class InvalidSubscriptionTierRange extends RuntimeException {
+
+    public InvalidSubscriptionTierRange(final String message) {
+        super(message);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTiers.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTiers.java
new file mode 100644
index 00000000..da34be48
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/InvalidSubscriptionTiers.java
@@ -0,0 +1,8 @@
+package tv.codely.checkout;
+
+public final class InvalidSubscriptionTiers extends RuntimeException {
+
+    public InvalidSubscriptionTiers(String message) {
+        super(message);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTier.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTier.java
new file mode 100644
index 00000000..2aac8e00
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTier.java
@@ -0,0 +1,54 @@
+package tv.codely.checkout;
+
+import java.util.Objects;
+
+public final class SubscriptionTier {
+
+    private final SubscriptionTierRange range;
+    private final SubscriptionTierPrice price;
+
+    public SubscriptionTier(
+        final SubscriptionTierRange range,
+        final SubscriptionTierPrice price) {
+
+        this.range = range;
+        this.price = price;
+    }
+
+    public boolean isFirst() {
+        return range.isFirst();
+    }
+
+    public boolean isLast() {
+        return range.isLast();
+    }
+
+    public boolean isInRange(int numberOfSubscriptions) {
+        return this.range.isSuitableFor(numberOfSubscriptions);
+    }
+
+    public double unitPrice() {
+        return price.unitPrice();
+    }
+
+    public double getTotalPrice(int numberOfSubscriptions) {
+        return unitPrice() * numberOfSubscriptions;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        SubscriptionTier that = (SubscriptionTier) o;
+        return Objects.equals(range, that.range) && Objects.equals(price, that.price);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(range, price);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierNotFound.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierNotFound.java
new file mode 100644
index 00000000..d6ac0d9e
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierNotFound.java
@@ -0,0 +1,9 @@
+package tv.codely.checkout;
+
+public final class SubscriptionTierNotFound extends RuntimeException {
+
+    public SubscriptionTierNotFound(int numberOfSubscriptions) {
+        super(String.format("Subscription tier not found for %d numberOfSubscriptions",
+            numberOfSubscriptions));
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierPrice.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierPrice.java
new file mode 100644
index 00000000..7e9024fd
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierPrice.java
@@ -0,0 +1,40 @@
+package tv.codely.checkout;
+
+import java.util.Objects;
+
+public final class SubscriptionTierPrice {
+
+    private final double value;
+
+    public SubscriptionTierPrice(double value) {
+        validate(value);
+        this.value = value;
+    }
+
+    private static void validate(double value) {
+        if (value < 1) {
+            throw new InvalidSubscriptionTierPrice("The price cannot be negative");
+        }
+    }
+
+    public double unitPrice() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        SubscriptionTierPrice that = (SubscriptionTierPrice) o;
+        return Double.compare(that.value, value) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(value);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierRange.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierRange.java
new file mode 100644
index 00000000..d67c1342
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTierRange.java
@@ -0,0 +1,88 @@
+package tv.codely.checkout;
+
+import java.util.Objects;
+
+// [from, to]
+public final class SubscriptionTierRange {
+
+    private final int numberOfSubscriptionsFrom;
+    private final int numberOfSubscriptionsTo;
+
+    private SubscriptionTierRange(int numberOfSubscriptionsFrom, int numberOfSubscriptionsTo) {
+        this.numberOfSubscriptionsFrom = numberOfSubscriptionsFrom;
+        this.numberOfSubscriptionsTo = numberOfSubscriptionsTo;
+    }
+
+    public static SubscriptionTierRange first(int numberOfSubscriptions) {
+        validate(numberOfSubscriptions);
+        return new SubscriptionTierRange(1, numberOfSubscriptions);
+    }
+
+    public static SubscriptionTierRange last(final SubscriptionTierRange range) {
+        validate(range);
+        return new SubscriptionTierRange(range.numberOfSubscriptionsTo + 1, Integer.MAX_VALUE);
+    }
+
+    public static SubscriptionTierRange from(
+        final SubscriptionTierRange range,
+        final int numberOfSubscriptions) {
+
+        validate(range);
+        validate(numberOfSubscriptions);
+
+        final int numberOfSubscriptionsFrom = range.numberOfSubscriptionsTo + 1;
+        final int numberOfSubscriptionsTo = numberOfSubscriptionsFrom + numberOfSubscriptions;
+        return new SubscriptionTierRange(numberOfSubscriptionsFrom, numberOfSubscriptionsTo);
+    }
+
+
+    private static void validate(final int numberOfSubscriptions) {
+        if (numberOfSubscriptions < 1) {
+            throw new InvalidSubscriptionTierRange(
+                "Number of subscriptions must be greater than 0");
+        }
+    }
+
+    private static void validate(final SubscriptionTierRange range) {
+        if (range == null) {
+            throw new InvalidSubscriptionTierRange(
+                "Cannot create a new subscription tier range from a null one");
+        }
+
+        if (range.isLast()) {
+            throw new InvalidSubscriptionTierRange(
+                "Cannot create a new subscription tier range after the last one");
+        }
+    }
+
+    public boolean isFirst() {
+        return numberOfSubscriptionsFrom == 1;
+    }
+
+    public boolean isLast() {
+        return numberOfSubscriptionsTo == Integer.MAX_VALUE;
+    }
+
+    public boolean isSuitableFor(int numberOfSubscriptions) {
+        return numberOfSubscriptions >= numberOfSubscriptionsFrom
+            && numberOfSubscriptions <= numberOfSubscriptionsTo;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        SubscriptionTierRange that = (SubscriptionTierRange) o;
+        return numberOfSubscriptionsFrom == that.numberOfSubscriptionsFrom
+            && numberOfSubscriptionsTo == that.numberOfSubscriptionsTo;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(numberOfSubscriptionsFrom, numberOfSubscriptionsTo);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTiers.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTiers.java
new file mode 100644
index 00000000..0cc8c755
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/SubscriptionTiers.java
@@ -0,0 +1,42 @@
+package tv.codely.checkout;
+
+import java.util.Set;
+
+public final class SubscriptionTiers {
+
+    private final Set<SubscriptionTier> tiers;
+
+    public SubscriptionTiers(final Set<SubscriptionTier> tiers) {
+        validate(tiers);
+        this.tiers = tiers;
+    }
+
+    private static void validate(final Set<SubscriptionTier> tiers) {
+        if (tiers == null || tiers.isEmpty()) {
+            throw new InvalidSubscriptionTiers("There must be at least one subscription tier");
+        }
+
+        if (tiers.stream().noneMatch(SubscriptionTier::isFirst)) {
+            throw new InvalidSubscriptionTiers("There must be a first subscription tier");
+        }
+
+        if (tiers.stream().noneMatch(SubscriptionTier::isLast)) {
+            throw new InvalidSubscriptionTiers("There must be a last subscription tier");
+        }
+    }
+
+    private SubscriptionTier findSuitableTier(int numberOfSubscriptions) {
+        return tiers.stream()
+            .filter(tier -> tier.isInRange(numberOfSubscriptions))
+            .findFirst()
+            .orElseThrow(() -> new SubscriptionTierNotFound(numberOfSubscriptions));
+    }
+
+    public double getTotalPrice(int numberOfSubscriptions) {
+        return findSuitableTier(numberOfSubscriptions).getTotalPrice(numberOfSubscriptions);
+    }
+
+    public double getBasePrice(int numberOfSubscriptions) {
+        return findSuitableTier(numberOfSubscriptions).unitPrice();
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/TieredPricing.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/TieredPricing.java
new file mode 100644
index 00000000..d80e5a72
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/TieredPricing.java
@@ -0,0 +1,24 @@
+package tv.codely.checkout;
+
+import java.util.Set;
+
+public class TieredPricing {
+
+    private final SubscriptionTiers tiers;
+
+    public TieredPricing(final SubscriptionTiers subscriptionTiers) {
+        this.tiers = subscriptionTiers;
+    }
+
+    public TieredPricing(final Set<SubscriptionTier> subscriptionTiers) {
+        this(new SubscriptionTiers(subscriptionTiers));
+    }
+
+    public double getTotalPrice(int numberOfSubscriptions) {
+        return tiers.getTotalPrice(numberOfSubscriptions);
+    }
+
+    public double getBasePrice(int numberOfSubscriptions) {
+        return tiers.getBasePrice(numberOfSubscriptions);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/CheckoutApplication.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/CheckoutApplication.java
new file mode 100644
index 00000000..89c23ee9
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/CheckoutApplication.java
@@ -0,0 +1,11 @@
+package tv.codely.checkout.api;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class CheckoutApplication {
+	public static void main(String[] args) {
+		SpringApplication.run(CheckoutApplication.class, args);
+	}
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/Controller/ExampleGetController.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/Controller/ExampleGetController.java
new file mode 100644
index 00000000..15b2681e
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/java/tv/codely/checkout/api/Controller/ExampleGetController.java
@@ -0,0 +1,21 @@
+package tv.codely.checkout.api.Controller;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletResponse;
+
+@RestController
+public class ExampleGetController {
+
+    @GetMapping("/")
+    public ResponseEntity<String> response(@RequestParam String name, HttpServletResponse response) throws JSONException {
+        response.addHeader("content-type", "application/json");
+
+        return ResponseEntity.ok(new JSONObject().put("hello", name).toString());
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/main/resources/log4j2.properties b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/resources/log4j2.properties
new file mode 100644
index 00000000..1d009f67
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/main/resources/log4j2.properties
@@ -0,0 +1,34 @@
+name = CodelyTvJavaBasicSkeleton
+property.filename = logs
+appenders = console, file
+
+status = warn
+
+appender.console.name = CONSOLE
+appender.console.type = CONSOLE
+appender.console.target = SYSTEM_OUT
+
+appender.console.logstash.type = LogstashLayout
+appender.console.logstash.dateTimeFormatPattern = yyyy-MM-dd'T'HH:mm:ss.SSSZZZ
+appender.console.logstash.eventTemplateUri = classpath:LogstashJsonEventLayoutV1.json
+appender.console.logstash.prettyPrintEnabled = true
+appender.console.logstash.stackTraceEnabled = true
+
+appender.file.type = File
+appender.file.name = LOGFILE
+appender.file.fileName=var/log/java-basic-skeleton.log
+appender.file.logstash.type=LogstashLayout
+appender.file.logstash.dateTimeFormatPattern = yyyy-MM-dd'T'HH:mm:ss.SSSZZZ
+appender.file.logstash.eventTemplateUri = classpath:LogstashJsonEventLayoutV1.json
+appender.file.logstash.prettyPrintEnabled = false
+appender.file.logstash.stackTraceEnabled = true
+
+loggers = file
+logger.file.name = tv.codely.java_basic_skeleton
+logger.file.level = info
+logger.file.appenderRefs = file
+logger.file.appenderRef.file.ref = LOGFILE
+
+rootLogger.level = info
+rootLogger.appenderRefs = stdout
+rootLogger.appenderRef.stdout.ref = CONSOLE
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierPriceShould.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierPriceShould.java
new file mode 100644
index 00000000..6b9725f8
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierPriceShould.java
@@ -0,0 +1,13 @@
+package tv.codely.checkout;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+public final class SubscriptionTierPriceShould {
+
+    @Test
+    void throw_invalid_subscription_tier_price_if_price_is_less_than_1() {
+        assertThrows(InvalidSubscriptionTierPrice.class, () -> new SubscriptionTierPrice(0));
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierRangeShould.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierRangeShould.java
new file mode 100644
index 00000000..1ba0df70
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/SubscriptionTierRangeShould.java
@@ -0,0 +1,19 @@
+package tv.codely.checkout;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+public final class SubscriptionTierRangeShould {
+
+    @Test
+    void throw_invalid_subscription_tier_range_if_number_of_subscriptions_is_less_than_1() {
+        assertThrows(InvalidSubscriptionTierRange.class, () -> SubscriptionTierRange.first(0));
+    }
+
+    @Test
+    void throw_invalid_subscription_tier_range_if_previous_range_does_not_exist() {
+        assertThrows(InvalidSubscriptionTierRange.class, () -> SubscriptionTierRange.last(null));
+    }
+
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/TieredPricingShould.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/TieredPricingShould.java
new file mode 100644
index 00000000..b14529fb
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/TieredPricingShould.java
@@ -0,0 +1,118 @@
+package tv.codely.checkout;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.util.Set;
+import org.junit.jupiter.api.Test;
+import tv.codely.checkout.mother.IntegerMother;
+import tv.codely.checkout.mother.SubscriptionTierMother;
+import tv.codely.checkout.mother.SubscriptionTierPriceMother;
+import tv.codely.checkout.mother.SubscriptionTierRangeMother;
+
+public class TieredPricingShould {
+
+    private static Set<SubscriptionTier> defaultSubscriptionTiers() {
+        final var firstTierRange = SubscriptionTierRange.first(2);
+        final var secondTierRange = SubscriptionTierRange.from(firstTierRange, 7);
+        final var thirdTierRange = SubscriptionTierRange.from(secondTierRange, 14);
+        final var fourthTierRange = SubscriptionTierRange.from(thirdTierRange, 24);
+        final var lastTierRange = SubscriptionTierRange.last(fourthTierRange);
+        return Set.of(
+            new SubscriptionTier(
+                firstTierRange,
+                new SubscriptionTierPrice(299)),
+            new SubscriptionTier(
+                secondTierRange,
+                new SubscriptionTierPrice(239)),
+            new SubscriptionTier(
+                thirdTierRange,
+                new SubscriptionTierPrice(219)),
+            new SubscriptionTier(
+                fourthTierRange,
+                new SubscriptionTierPrice(199)),
+            new SubscriptionTier(
+                lastTierRange,
+                new SubscriptionTierPrice(149)));
+    }
+
+    @Test
+    void return_total_price_based_on_number_of_subscriptions() {
+        final var subscriptionTiers = SubscriptionTierMother.randoms();
+        final var tieredPricing = new TieredPricing(subscriptionTiers);
+        final var numberOfSubscriptions = IntegerMother.random();
+        final var expectedPrice =
+            tieredPricing.getBasePrice(numberOfSubscriptions) * numberOfSubscriptions;
+
+        final var totalPrice = tieredPricing.getTotalPrice(numberOfSubscriptions);
+
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void return_total_price_for_1_subscription() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var expectedPrice = 299;
+
+        final var totalPrice = tieredPricing.getTotalPrice(1);
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void return_total_price_for_3_subscriptions() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var expectedPrice = 239 * 3;
+
+        final var totalPrice = tieredPricing.getTotalPrice(3);
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void return_total_price_for_11_subscriptions() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var expectedPrice = 219 * 11;
+
+        final var totalPrice = tieredPricing.getTotalPrice(11);
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void return_total_price_for_26_subscriptions() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var expectedPrice = 199 * 26;
+
+        final var totalPrice = tieredPricing.getTotalPrice(26);
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void return_total_price_for_51_subscriptions() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var expectedPrice = 149 * 51;
+
+        final var totalPrice = tieredPricing.getTotalPrice(51);
+        assertEquals(expectedPrice, totalPrice);
+    }
+
+    @Test
+    void throw_invalid_subscription_tiers_if_there_is_no_tiers() {
+        assertThrows(InvalidSubscriptionTiers.class, () -> new TieredPricing(Set.of()));
+    }
+
+    @Test
+    void throw_invalid_subscription_tiers_if_there_is_no_last_tier() {
+        final var subscriptionTiers =
+            Set.of(SubscriptionTierMother.create(SubscriptionTierRangeMother.first(10),
+                SubscriptionTierPriceMother.random()));
+
+        assertThrows(InvalidSubscriptionTiers.class, () -> new TieredPricing(subscriptionTiers));
+    }
+
+    @Test
+    void throw_subscription_tier_not_found_if_number_of_subscriptions_does_not_match_any_tier() {
+        final var tieredPricing = new TieredPricing(defaultSubscriptionTiers());
+        final var numberOfSubscriptions = 0;
+        assertThrows(SubscriptionTierNotFound.class,
+            () -> tieredPricing.getTotalPrice(numberOfSubscriptions));
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/ApiTestCase.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/ApiTestCase.java
new file mode 100644
index 00000000..e0346b69
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/ApiTestCase.java
@@ -0,0 +1,67 @@
+package tv.codely.checkout.api;
+
+import org.json.JSONObject;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.ResultMatcher;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest
+public abstract class ApiTestCase {
+
+    @Autowired
+    private MockMvc mockMvc;
+    private ResultActions currentRequest;
+
+
+    protected void assertJsonResponse(
+            String endpoint,
+            Integer expectedStatusCode,
+            String expectedResponse
+    ) throws Exception {
+        ResultMatcher response = expectedResponse.isEmpty()
+                ? content().string("")
+                : content().json(expectedResponse);
+
+        mockMvc
+                .perform(get(endpoint))
+                .andExpect(status().is(expectedStatusCode))
+                .andExpect(response)
+                .andExpect(header().string("content-type", "application/json"));
+
+    }
+
+    protected void whenGetRequestSentTo(String endpoint) throws Exception {
+        currentRequest = mockMvc.perform(get(endpoint));
+    }
+
+    protected void assertStatusCodeIs(Integer expectedStatusCode) throws Exception {
+        currentRequest.andExpect(status().is(expectedStatusCode));
+    }
+
+    protected void assertContentTypeIsA(String expectedContentType) throws Exception {
+        currentRequest.andExpect(header().string("content-type", expectedContentType));
+    }
+
+    protected void assertResponseIs(String expectedResponse) throws Exception {
+        ResultMatcher response = expectedResponse.isEmpty()
+                ? content().string("")
+                : content().json(expectedResponse);
+
+        currentRequest.andExpect(response);
+    }
+
+    protected void assertSuccessJsonResponse(JSONObject json) throws Exception {
+        assertJsonResponse(200, json);
+    }
+
+    protected void assertJsonResponse(int statusCode, JSONObject json) throws Exception {
+        assertStatusCodeIs(statusCode);
+        assertContentTypeIsA("application/json");
+        assertResponseIs(json.toString());
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/Controller/ExampleGetControllerShould.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/Controller/ExampleGetControllerShould.java
new file mode 100644
index 00000000..55c7a3b0
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/api/Controller/ExampleGetControllerShould.java
@@ -0,0 +1,16 @@
+package tv.codely.checkout.api.Controller;
+
+import org.json.JSONObject;
+import org.junit.jupiter.api.Test;
+import tv.codely.checkout.api.ApiTestCase;
+
+public class ExampleGetControllerShould extends ApiTestCase {
+
+    @Test
+    public void spring_boot_e2e_test_example() throws Exception {
+        whenGetRequestSentTo("/?name=world");
+
+        JSONObject jsonResponse = new JSONObject().put("hello", "world");
+        assertSuccessJsonResponse(jsonResponse);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/DoubleMother.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/DoubleMother.java
new file mode 100644
index 00000000..f9441291
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/DoubleMother.java
@@ -0,0 +1,8 @@
+package tv.codely.checkout.mother;
+
+public final class DoubleMother {
+
+    public static double randomBetween(final int min, final int max) {
+        return MotherCreator.random().number().randomDouble(2, min, max);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/IntegerMother.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/IntegerMother.java
new file mode 100644
index 00000000..38ce43ea
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/IntegerMother.java
@@ -0,0 +1,12 @@
+package tv.codely.checkout.mother;
+
+public final class IntegerMother {
+
+    public static int random() {
+        return MotherCreator.random().number().randomDigitNotZero();
+    }
+
+    public static int randomBetween(final int min, final int max) {
+        return MotherCreator.random().number().numberBetween(min, max);
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/MotherCreator.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/MotherCreator.java
new file mode 100644
index 00000000..d3c5bd76
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/MotherCreator.java
@@ -0,0 +1,12 @@
+package tv.codely.checkout.mother;
+
+import com.github.javafaker.Faker;
+
+public final class MotherCreator {
+
+    private static final Faker faker = new Faker();
+
+    public static Faker random() {
+        return faker;
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierMother.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierMother.java
new file mode 100644
index 00000000..593d77d9
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierMother.java
@@ -0,0 +1,34 @@
+package tv.codely.checkout.mother;
+
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.Collectors;
+import tv.codely.checkout.SubscriptionTier;
+import tv.codely.checkout.SubscriptionTierPrice;
+import tv.codely.checkout.SubscriptionTierRange;
+
+public final class SubscriptionTierMother {
+
+    public static SubscriptionTier create(
+        final SubscriptionTierRange range,
+        final SubscriptionTierPrice price) {
+
+        return new SubscriptionTier(range, price);
+    }
+
+    public static Set<SubscriptionTier> randoms() {
+        final var subscriptionTierRanges = SubscriptionTierRangeMother.randoms();
+        final var previousSubscriptionTierPrice = new AtomicReference<>(299D);
+
+        return subscriptionTierRanges.stream()
+            .map(range -> {
+                final var subscriptionTierPrice =
+                    DoubleMother.randomBetween(
+                        previousSubscriptionTierPrice.get().intValue() - 60,
+                        previousSubscriptionTierPrice.get().intValue() - 20);
+                previousSubscriptionTierPrice.set(subscriptionTierPrice);
+                return create(range, SubscriptionTierPriceMother.create(subscriptionTierPrice));
+            })
+            .collect(Collectors.toSet());
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierPriceMother.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierPriceMother.java
new file mode 100644
index 00000000..a2e3920b
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierPriceMother.java
@@ -0,0 +1,14 @@
+package tv.codely.checkout.mother;
+
+import tv.codely.checkout.SubscriptionTierPrice;
+
+public final class SubscriptionTierPriceMother {
+
+    public static SubscriptionTierPrice create(final double value) {
+        return new SubscriptionTierPrice(value);
+    }
+
+    public static SubscriptionTierPrice random() {
+        return create(DoubleMother.randomBetween(100, 300));
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierRangeMother.java b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierRangeMother.java
new file mode 100644
index 00000000..bf8e5fae
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/java/tv/codely/checkout/mother/SubscriptionTierRangeMother.java
@@ -0,0 +1,44 @@
+package tv.codely.checkout.mother;
+
+import java.util.ArrayList;
+import java.util.List;
+import tv.codely.checkout.SubscriptionTierRange;
+
+public final class SubscriptionTierRangeMother {
+
+    public static SubscriptionTierRange first(final int numberOfSubscriptions) {
+        return SubscriptionTierRange.first(numberOfSubscriptions);
+    }
+
+    public static SubscriptionTierRange last(final SubscriptionTierRange range) {
+        return SubscriptionTierRange.last(range);
+    }
+
+    public static List<SubscriptionTierRange> randoms() {
+        final var tierRanges = new ArrayList<SubscriptionTierRange>();
+        final var numberOfTiers = IntegerMother.randomBetween(1, 6);
+        final var minSubscriptionsInTier = 3;
+        final var maxSubscriptionsInTier =
+            IntegerMother.randomBetween(minSubscriptionsInTier + 1, 20);
+        var currentTierRange = first(
+            IntegerMother.randomBetween(minSubscriptionsInTier, maxSubscriptionsInTier));
+        tierRanges.add(currentTierRange);
+
+        for (int i = 0; i < numberOfTiers; i++) {
+            if (i == numberOfTiers - 1) {
+                tierRanges.add(last(currentTierRange));
+                break;
+            }
+
+            final var numberOfSubscriptions =
+                IntegerMother.randomBetween(minSubscriptionsInTier, maxSubscriptionsInTier);
+            final var tierRange = SubscriptionTierRange.from(currentTierRange,
+                numberOfSubscriptions);
+
+            currentTierRange = tierRange;
+            tierRanges.add(tierRange);
+        }
+
+        return tierRanges;
+    }
+}
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/src/test/resources/log4j2.properties b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/resources/log4j2.properties
new file mode 100644
index 00000000..1aae4672
--- /dev/null
+++ b/exercises/tiered_pricing/solutions/adrianliz/java/src/test/resources/log4j2.properties
@@ -0,0 +1,33 @@
+name = CodelyTvJavaBasicSkeleton
+property.filename = logs
+appenders = console, file
+
+status = warn
+
+appender.console.name = CONSOLE
+appender.console.type = CONSOLE
+appender.console.target = SYSTEM_OUT
+
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = [%level] [%date{HH:mm:ss.SSS}] [%class{0}#%method:%line] %message \(%mdc\) %n%throwable
+appender.console.filter.threshold.type = ThresholdFilter
+appender.console.filter.threshold.level = info
+
+appender.file.type = File
+appender.file.name = LOGFILE
+appender.file.fileName=var/log/java-basic-skeleton-test.log
+appender.file.logstash.type=LogstashLayout
+appender.file.logstash.dateTimeFormatPattern = yyyy-MM-dd'T'HH:mm:ss.SSSZZZ
+appender.file.logstash.eventTemplateUri = classpath:LogstashJsonEventLayoutV1.json
+appender.file.logstash.prettyPrintEnabled = false
+appender.file.logstash.stackTraceEnabled = true
+
+loggers = file
+logger.file.name = tv.codely.java_basic_skeleton
+logger.file.level = info
+logger.file.appenderRefs = file
+logger.file.appenderRef.file.ref = LOGFILE
+
+rootLogger.level = info
+rootLogger.appenderRefs = stdout
+rootLogger.appenderRef.stdout.ref = CONSOLE
diff --git a/exercises/tiered_pricing/solutions/adrianliz/java/var/log/.gitkeep b/exercises/tiered_pricing/solutions/adrianliz/java/var/log/.gitkeep
new file mode 100644
index 00000000..e69de29b