[MECLIPSE-751] compliance should be the greater of targetPlatform and source

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.9
• Component/s: Core : Workspace settings
• Environment: Windows 7; Eclipse Kepler SR 1
• Assignee: Robert Scholte
• Reporter: Andrew Cottrell
• Created: 01/May/14 03:10
• Updated: 25/Dec/15 11:49
• Resolved: 25/Dec/15 11:49

Description

The Java Compiler settings in Eclipse has the following two requirements:
1. Source compatibility must be equal to or less than compliance level.
2. Classfile compatibility must be equal to or less than compliance level.

In the method "org.apache.maven.plugin.eclipse.writers.workspace.EclipseSettingsWriter# write()", which writes the settings in "org.eclipse.jdt.core.prefs", the value for "org.eclipse.jdt.core.compiler.compliance" is set to the same value as "org.eclipse.jdt.core.compiler.source". This does not meet the requirements when "org.eclipse.jdt.core.compiler.codegen.targetPlatform" is greater than "org.eclipse.jdt.core.compiler.source".

The method can meet the requirements by setting "org.eclipse.jdt.core.compiler.compliance" to the greater of "org.eclipse.jdt.core.compiler.codegen.targetPlatform" and "org.eclipse.jdt.core.compiler.source".