Bug 127791 [preferences] new compiler option COMPILER_PB_FALLTHROUGH_CASE
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/ProblemSeveritiesConfigurationBlock.java
private static final Key PREF_PB_UNNECESSARY_TYPE_CHECK= getJDTCoreKey(JavaCore.COMPILER_PB_UNNECESSARY_TYPE_CHECK);
	private static final Key PREF_PB_INCOMPATIBLE_INTERFACE_METHOD= getJDTCoreKey(JavaCore.COMPILER_PB_INCOMPATIBLE_NON_INHERITED_INTERFACE_METHOD);
	private static final Key PREF_PB_UNUSED_DECLARED_THROWN_EXCEPTION= getJDTCoreKey(JavaCore.COMPILER_PB_UNUSED_DECLARED_THROWN_EXCEPTION);
	private static final Key PREF_PB_MISSING_SERIAL_VERSION= getJDTCoreKey(JavaCore.COMPILER_PB_MISSING_SERIAL_VERSION);
	private static final Key PREF_PB_UNDOCUMENTED_EMPTY_BLOCK= getJDTCoreKey(JavaCore.COMPILER_PB_UNDOCUMENTED_EMPTY_BLOCK);
	private static final Key PREF_PB_FINALLY_BLOCK_NOT_COMPLETING= getJDTCoreKey(JavaCore.COMPILER_PB_FINALLY_BLOCK_NOT_COMPLETING);
	private static final Key PREF_PB_UNUSED_DECLARED_THROWN_EXCEPTION_WHEN_OVERRIDING= getJDTCoreKey(JavaCore.COMPILER_PB_UNUSED_DECLARED_THROWN_EXCEPTION_WHEN_OVERRIDING);
	private static final Key PREF_PB_UNQUALIFIED_FIELD_ACCESS= getJDTCoreKey(JavaCore.COMPILER_PB_UNQUALIFIED_FIELD_ACCESS);
	private static final Key PREF_PB_MISSING_DEPRECATED_ANNOTATION= getJDTCoreKey(JavaCore.COMPILER_PB_MISSING_DEPRECATED_ANNOTATION);
	private static final Key PREF_PB_FORBIDDEN_REFERENCE= getJDTCoreKey(JavaCore.COMPILER_PB_FORBIDDEN_REFERENCE);
	private static final Key PREF_PB_DISCOURRAGED_REFERENCE= getJDTCoreKey(JavaCore.COMPILER_PB_DISCOURAGED_REFERENCE);
	private static final Key PREF_PB_UNUSED_LABEL= getJDTCoreKey(JavaCore.COMPILER_PB_UNUSED_LABEL);
	private static final Key PREF_PB_PARAMETER_ASSIGNMENT= getJDTCoreKey(JavaCore.COMPILER_PB_PARAMETER_ASSIGNMENT);
	private static final Key PREF_PB_NULL_REFERENCE= getJDTCoreKey("org.eclipse.jdt.core.compiler.problem.nullReference");  
	
	private static final Key PREF_15_PB_UNCHECKED_TYPE_OPERATION= getJDTCoreKey(JavaCore.COMPILER_PB_UNCHECKED_TYPE_OPERATION);
	private static final Key PREF_15_PB_FINAL_PARAM_BOUND= getJDTCoreKey(JavaCore.COMPILER_PB_FINAL_PARAMETER_BOUND);
	private static final Key PREF_15_PB_VARARGS_ARGUMENT_NEED_CAST= getJDTCoreKey(JavaCore.COMPILER_PB_VARARGS_ARGUMENT_NEED_CAST);
	private static final Key PREF_15_PB_AUTOBOXING_PROBLEM= getJDTCoreKey(JavaCore.COMPILER_PB_AUTOBOXING);
	
	private static final Key PREF_15_PB_MISSING_OVERRIDE_ANNOTATION= getJDTCoreKey(JavaCore.COMPILER_PB_MISSING_OVERRIDE_ANNOTATION);
	private static final Key PREF_15_PB_ANNOTATION_SUPER_INTERFACE= getJDTCoreKey(JavaCore.COMPILER_PB_ANNOTATION_SUPER_INTERFACE);
	private static final Key PREF_15_PB_TYPE_PARAMETER_HIDING= getJDTCoreKey(JavaCore.COMPILER_PB_TYPE_PARAMETER_HIDING);
	private static final Key PREF_15_PB_INCOMPLETE_ENUM_SWITCH= getJDTCoreKey(JavaCore.COMPILER_PB_INCOMPLETE_ENUM_SWITCH);
	private static final Key PREF_15_PB_RAW_TYPE_REFERENCE= getJDTCoreKey(JavaCore.COMPILER_PB_RAW_TYPE_REFERENCE);
	
	private static final Key PREF_PB_SUPPRESS_WARNINGS= getJDTCoreKey(JavaCore.COMPILER_PB_SUPPRESS_WARNINGS);
	private static final Key PREF_PB_UNHANDLED_WARNING_TOKEN= getJDTCoreKey(JavaCore.COMPILER_PB_UNHANDLED_WARNING_TOKEN);