Eclipse: java.lang.UnsatisfiedLinkError: Cannot load 32-bit SWT libraries on 64-bit JVM
Written by Viktor Gamov -
Last weekend spend in setup of environment for eclipse plug-in development. I have task to fix and update one plugin. This is add-on to Flash Builder. But before adding something, it's good to run that plugin before. My environment is Mac OS X 10.7 Lion, Eclipse 3.6 (32bit because FB not supported 64bit version of Eclipse) and Flash Builder 4.5. But I faced with odd exception
!SESSION 2011-07-25 23:59:39.350
-----------------------------------------------
eclipse.buildId=M20110210-1200
java.version=1.6.0_26
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86, WS=cocoa, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -product org.eclipse.epp.package.jee.product -data
/Users/apple/Workspaces/work/../runtime-EclipseApplication -dev file:/Users/apple/Workspaces/work/.metadata/.plugins/org.eclipse.pde.core/Eclipse
Application/dev.properties -os macosx -ws cocoa -arch x86 -consoleLog
!ENTRY org.eclipse.osgi 4 0 2011-07-25 23:59:57.129
!MESSAGE Application error
!STACK 1
java.lang.UnsatisfiedLinkError: Cannot load 32-bit SWT libraries on 64-bit
JVM
at org.eclipse.swt.internal.Library.loadLibrary(Library.java:197)
at org.eclipse.swt.internal.Library.loadLibrary(Library.java:174)
at org.eclipse.swt.internal.C.(C.java:21)
at org.eclipse.swt.internal.cocoa.NSThread.isMainThread(NSThread.java:33)
at org.eclipse.swt.graphics.Device.(Device.java:116)
at org.eclipse.swt.widgets.Display.(Display.java:671)
at org.eclipse.swt.widgets.Display.(Display.java:662)
at org.eclipse.ui.internal.Workbench.createDisplay(Workbench.java:708)
at org.eclipse.ui.PlatformUI.createDisplay(PlatformUI.java:161)
at org.eclipse.ui.internal.ide.application.IDEApplication.createDisplay(IDEApplication.java:145)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:88)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
An error has occurred. See the log file
/Users/apple/Workspaces/runtime-EclipseApplication/.metadata/.log.
Mac OS X shipped with 2 versions of JVM - 32 bit and 64 bit accordingly. So, First I tried to change order of JVM preference from /Application/Utilities/Java Preferences but it didn't work.
After consulting with colleagues and googling I come up with solution. I went to Eclipse→Preferences→Java→Installed JRE and add default JVM argument *-d32 *(must be small d)
This command forces to use 32bit JVM. Happy coding!