[ecore,uml] Fix Java 10 failure on CharBuffer.flip

[eclipse-ocl-bot]

| --- | --- |
| Bugzilla Link | 534950 |
| Status | RESOLVED FIXED |
| Importance | P3 normal |
| Reported | May 22, 2018 10:40 EDT |
| Modified | May 22, 2018 19:04 EDT |
| Reporter | Ed Willink |

Description

After upgrading to Java 10 for Photon RC1, everything seems gto work except the Classic OCL DocumentParsingTests that fail at:

java.lang.NoSuchMethodError: java.nio.CharBuffer.flip()Ljava/nio/CharBuffer;
at org.eclipse.ocl.OCLInput.buildStringFromReader(OCLInput.java:128)
at org.eclipse.ocl.OCLInput.getContentAsString(OCLInput.java:110)
at org.eclipse.ocl.OCL.parse(OCL.java:288)
at org.eclipse.ocl.uml.tests.OCLDocumentTest.setUp(OCLDocumentTest.java:231)

which seems impossible, but one method we can workaround easily.

[eclipse-ocl-bot]

By Ed Willink on May 22, 2018 10:49

(In reply to Ed Willink from comment #0)

everything seems to work except the Classic OCL DocumentParsingTests

The Generate OCL Pivot Model transformation fails at this too, so it looks like QVTo and presumably anything that loads Classic OCL is broken.

[eclipse-ocl-bot]

By Ed Willink on May 22, 2018 19:04

plasma-umass/doppio#497 provides the fix.

Just cast the CharBuffer to Buffer before invoking flip() to avoid a JDK 8/9 signature chnage sensitivity.

Pushed to master for RC2