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| author |  brendandouglas <brendandouglas@google.com> | 2018-06-12 09:39:38 -0700 |
|---|---|---|
| committer |  Copybara-Service <copybara-piper@google.com> | 2018-06-12 09:40:42 -0700 |
| commit | fe785e107d0f05bf8529d1460e017cbf5de184ec (patch) | |
| tree | 55407c81a23f33f132209eb890b758493d4eb840 /src/main/java/com/google/devtools/build/lib/actions/ActionContextMarker.java | |
| parent | f4b9ff40b8f1612571cc711560177af240d034d0 (diff) | |
Skylark debugger: Fix NPE listing frames.
Environment$Continuation#caller is most definitely nullable in practice.
I suspect it's a bug in skylark itself, but for now, just properly mark
it nullable and handle it in the debugger.
Stack trace from NPE:
Caused by: java.lang.NullPointerException
at com.google.devtools.build.lib.syntax.Environment.listFrames(Environment.java:1197)
at com.google.devtools.build.lib.syntax.Environment.listFrames(Environment.java:81)
at com.google.devtools.build.lib.skylarkdebug.server.ThreadHandler.listFrames(ThreadHandler.java:236)
at com.google.devtools.build.lib.skylarkdebug.server.ThreadHandler.getThreadProto(ThreadHandler.java:345)
at com.google.devtools.build.lib.skylarkdebug.server.ThreadHandler.pauseCurrentThread(ThreadHandler.java:289)
at com.google.devtools.build.lib.skylarkdebug.server.ThreadHandler.pauseIfNecessary(ThreadHandler.java:203)
at com.google.devtools.build.lib.skylarkdebug.server.SkylarkDebugServer.pauseIfNecessary(SkylarkDebugServer.java:158)
at com.google.devtools.build.lib.skylarkdebug.server.SkylarkDebugServer$DebugAwareEval.exec(SkylarkDebugServer.java:262)
at com.google.devtools.build.lib.syntax.UserDefinedFunction.call(UserDefinedFunction.java:91)
at com.google.devtools.build.lib.syntax.BaseFunction.callWithArgArray(BaseFunction.java:462)
at com.google.devtools.build.lib.syntax.BaseFunction.call(BaseFunction.java:440)
at com.google.devtools.build.lib.analysis.skylark.SkylarkRuleConfiguredTargetUtil.lambda$buildRule$1(SkylarkRuleConfiguredTargetUtil.java:105)
at com.google.devtools.build.lib.skylarkdebug.server.SkylarkDebugServer.runWithDebugging(SkylarkDebugServer.java:142)
at com.google.devtools.build.lib.syntax.DebugServerUtils.runWithDebuggingIfEnabled(DebugServerUtils.java:70)
at com.google.devtools.build.lib.analysis.skylark.SkylarkRuleConfiguredTargetUtil.buildRule(SkylarkRuleConfiguredTargetUtil.java:100)
PiperOrigin-RevId: 200229036
Diffstat (limited to 'src/main/java/com/google/devtools/build/lib/actions/ActionContextMarker.java')
0 files changed, 0 insertions, 0 deletions