[sdk/java] improve exception output

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Issue details

Was reviewing https://github.com/pulumi/examples/pull/1260

The error message could be better.

  pulumi:pulumi:Stack (gcp-java-gke-hello-world-dev):
    [INFO] Scanning for projects...
    [INFO]
    [INFO] ----------------< com.pulumi:gcp-java-gke-hello-world >-----------------
    [INFO] Building gcp-java-gke-hello-world 1.0-SNAPSHOT
    [INFO] --------------------------------[ jar ]---------------------------------
    [INFO]
    [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ gcp-java-gke-hello-world ---
    [INFO] Using 'UTF-8' encoding to copy filtered resources.
    [INFO] skip non existing resourceDirectory /home/kdixler/Documents/examples/gcp-java-gke-hello-world/src/main/resources
    [INFO]
    [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ gcp-java-gke-hello-world ---
    [INFO] Nothing to compile - all classes are up to date
    [INFO]
    [INFO] --- exec-maven-plugin:3.0.0:java (default-cli) @ gcp-java-gke-hello-world ---
 
    Aug 10, 2022 8:16:53 AM com.pulumi.deployment.internal.DeploymentImpl$DefaultEngineLogger errorAsync
    SEVERE: Running program [PID: 217938](/usr/lib/jvm/java-11-openjdk/bin/java -classpath /opt/maven/boot/plexus-classworlds-2.6.0.jar -Dclassworlds.conf=/opt/maven/bin/m2.conf -Dmaven.home=/opt/maven -Dlibrary.jansi.path=/opt/maven/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/kdixler/Documents/examples/gcp-java-gke-hello-world org.codehaus.plexus.classworlds.launcher.Launcher --no-transfer-progress compile exec:java) failed with an unhandled exception:
    java.util.NoSuchElementException: No value present
    	at java.base/java.util.Optional.orElseThrow(Optional.java:382)
    	at gcpgke.App.stack(App.java:94)
    	at com.pulumi.internal.PulumiInternal.lambda$runAsyncResult$2(PulumiInternal.java:77)
    	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
    	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692)
    	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
    	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
    	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
    	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
    	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
 
    error: Running program [PID: 217938](/usr/lib/jvm/java-11-openjdk/bin/java -classpath /opt/maven/boot/plexus-classworlds-2.6.0.jar -Dclassworlds.conf=/opt/maven/bin/m2.conf -Dmaven.home=/opt/maven -Dlibrary.jansi.path=/opt/maven/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/kdixler/Documents/examples/gcp-java-gke-hello-world org.codehaus.plexus.classworlds.launcher.Launcher --no-transfer-progress compile exec:java) failed with an unhandled exception:
    java.util.NoSuchElementException: No value present
    	at java.base/java.util.Optional.orElseThrow(Optional.java:382)
    	at gcpgke.App.stack(App.java:94)
    	at com.pulumi.internal.PulumiInternal.lambda$runAsyncResult$2(PulumiInternal.java:77)
    	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
    	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692)
    	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
    	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
    	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
    	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
    	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
    error: an unhandled error occurred: '/usr/bin/mvn /usr/bin/mvn --no-transfer-progress compile exec:java' exited with non-zero exit code: 32

Work items

• #763
• deduplicate error output(likely stderr/stdout)
• trim stacktrace
• improve missing config value error message(indicate the missing config value and how to set it)

Affected area/feature

Start by reproducing the Maven execution failure shown in the issue and inspect the Java stack entry at gcpgke.App.stack(App.java:94) alongside the PulumiInternal.runAsyncResult path. The listed work items define completion: deduplicate stderr/stdout output, trim the stack trace, and make missing-config errors identify the value and how to set it.