JDK-8274311: Make build.tools.jigsaw.GenGraphs more configurable

[mlchung]

GenGraphs tool generates the module graph. It currently supports the configuration via javadoc-graphs.properties. However, make/jdk/src/classes/build/tools/jigsaw/javadoc-graphs.properties only documents two properties. It should be updated to cover all configurable properties.

There are a couple other properties not configurable such as nodesep and node margin. This extends the configuration to allow to set additional properties.

This also fixes requiresMandatedColor in javadoc-graphs.properties to light gray to match the default configuration in the implementation, i.e. the color of the edge to java.base. It seems a bug that was unnoticed until Alex and Iris spotted it.

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Progress

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Issue

• JDK-8274311: Make build.tools.jigsaw.GenGraphs more configurable

Reviewers

• Alan Bateman (@AlanBateman - Reviewer)
• Iris Clark (@irisclark - Reviewer)

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[mlbridge]

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• 00: Full (22b4d21d)

[openjdk]

@mlchung This change now passes all automated pre-integration checks.

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8274311: Make build.tools.jigsaw.GenGraphs more configurable

Reviewed-by: alanb, iris

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 5756385: 8274273: Update testing docs for MacOS with Non-US locale

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[mlchung]

/integrate

[openjdk]

Going to push as commit daaa47e.
Since your change was applied there have been 14 commits pushed to the master branch:

• 2cffe4c: 8274326: [macos] Ensure initialisation of sun/lwawt/macosx/CAccessibility in JavaComponentAccessibility.m
• 172900d: 8274255: Update javac messages to use "enum class" rather than "enum type"
• b0983df: 8274074: SIGFPE with C2 compiled code with -XX:+StressGCM
• 7436a77: 8274317: Unnecessary reentrant synchronized block in java.awt.Cursor
• 7426fd4: 8274325: C4819 warning at vm_version_x86.cpp on Windows after JDK-8234160
• e3aff8f: 8274289: jdk/jfr/api/consumer/TestRecordedFrameType.java failed with "RuntimeException: assertNotEquals: expected Interpreted to not equal Interpreted"
• 252aaa9: 8274293: Build failure on macOS with Xcode 13.0 as vfork is deprecated
• 7700b25: 8273401: Disable JarIndex support in URLClassPath
• 5ec1cdc: 8274321: Standardize values of @SInCE tags in javax.lang.model
• 4838a2c: 8274143: Disable "invalid entry for security.provider.X" error message in log file when security.provider.X is empty
• ... and 4 more: https://git.openjdk.java.net/jdk/compare/61ac53f6e5a149c6ec68a8df43106e72bfd1ebb2...master

Your commit was automatically rebased without conflicts.

[openjdk]

@mlchung Pushed as commit daaa47e.

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