Increase Gradle JVM memory to prevent out of memory error

[anusreelakshmi934]

Fixes #1383

[TrevCraw]

@anusreelakshmi934 since this is just a properties file, do you know how this property actually gets pulled in to the environment where the build/tests are running? Typically, the properties listed in this file are referenced in build.gradle, but I don't see this one.

[TrevCraw]

I also noticed this line in the build.gradle...

liberty-tools-intellij/build.gradle

Lines 23 to 27 in b1d9e02

	// Increase Java heap size to avoid OutOfMemoryError during compilation or tests.
	// This setting addresses issues where the JVM runs out of memory, particularly during
	// large builds or tests. The '2g' value specifies a maximum heap size of 2GB
	// (-Xmx2g), which should be enough to prevent memory exhaustion in most cases.
	options.forkOptions.memoryMaximumSize = "2g"

... which looks like it was supposed to address this kind of issue. Did you look into increasing this value at all?

[anusreelakshmi934]

I noticed the options.forkOptions.memoryMaximumSize = "2g" setting, but from what I understand that only affects the forked Javac process. The OutOfMemoryError occurs in Gradle’s internals, meaning the daemon JVM is running out of memory. This fix is to increase the daemon heap via org.gradle.jvmargs to give it enough memory.

[anusreelakshmi934]

@anusreelakshmi934 since this is just a properties file, do you know how this property actually gets pulled in to the environment where the build/tests are running? Typically, the properties listed in this file are referenced in build.gradle, but I don't see this one.

Gradle automatically reads gradle.properties and applies -Xmx6g to the Gradle daemon JVM. There's no need to reference it in build.gradle. The org.gradle.jvmargs property is special, Gradle picks it up from gradle.properties and uses it internally to configure the JVM for the Gradle daemon. As a result, any builds or tests executed through Gradle will automatically inherit this JVM argument. -
https://docs.gradle.org/current/userguide/config_gradle.html?utm_source=chatgpt.com#sec:configuring_jvm_memory

https://docs.gradle.org/current/userguide/build_environment.html?utm_source=chatgpt.com#gradle_properties_reference

Here I have just printed the info about the memory that is being used - https://github.com/anusreelakshmi934/liberty-tools-intellij/actions/runs/18771459676/job/53556716966#step:8:21