3237832 - Build fails with error unmappable character for encoding UTF8 - SAP Commerce Cloud

The build fails with logs similar to:

INFO d.h.c.e.Executor [Thread-14] stdout:    [yjavac] /opt/workspace/build/customer-project/core-customize/hybris/bin/custom/path/to/custom/class/CustomClass.java:8: error: unmappable character (0x93) for encoding UTF8
INFO d.h.c.e.Executor [Thread-14] stdout:    [yjavac] * �
INFO d.h.c.e.Executor [Thread-14] stdout:    [yjavac]    ^
INFO d.h.c.e.Executor [Thread-14] stdout:    [yjavac] 2 errors
INFO d.h.c.e.Executor [Thread-15] stderr: 
INFO d.h.c.e.Executor [Thread-15] stderr: BUILD FAILED
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/build.xml:13: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:95: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:153: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/util.xml:13: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:160: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:333: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:538: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/compiling.xml:589: The following error occurred while executing this line:
INFO d.h.c.e.Executor [Thread-15] stderr: /opt/workspace/build/commerce-suite/hybris/bin/platform/resources/ant/util.xml:94: Compile failed; see the compiler error output for details.
INFO d.h.c.e.Executor [Thread-15] stderr: 
INFO d.h.c.e.Executor [Thread-15] stderr: Total time: 5 minutes 47 seconds
Exception in thread "main" de.hybris.ccv2.BuilderException: Executing of external command failed with exit code: 1
    at de.hybris.ccv2.executor.Executor.executeOperation(Executor.java:86)
    at de.hybris.ccv2.executor.Executor.executeWithRetry(Executor.java:113)
    at de.hybris.ccv2.executor.Executor.execute(Executor.java:59)
    at de.hybris.ccv2.executor.JavaDependentExecutor.execute(JavaDependentExecutor.java:62)
    at de.hybris.ccv2.corecommerce.BuilderPlatformAntExecutor.execute(BuilderPlatformAntExecutor.java:103)
    at de.hybris.ccv2.corecommerce.task.BuildCoreCommerceTask.process(BuildCoreCommerceTask.java:124)
    at de.hybris.ccv2.Builder.runTask(Builder.java:256)
    at de.hybris.ccv2.Builder.lambda$runTasks$5(Builder.java:223)
    at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655)
    at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
    at de.hybris.ccv2.Builder.runTasks(Builder.java:218)
    at de.hybris.ccv2.Builder.run(Builder.java:100)
    at de.hybris.ccv2.Builder.main(Builder.java:56)

• SAP Commerce
• SAP Commerce Cloud

commerce, ISO-8859-1, file.encoding,unmappable character,Compile failed, build.encoding=UTF8 , KBA , CEC-SCC-CLA-BUI , Build Process , Problem