java.lang.NullPointerException

GitHub | xwinie | 10 months ago
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  1. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 7 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  2. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  5. 0

    NullPointerException in MIDlet with left soft key

    Stack Overflow | 6 years ago | berry120
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callItemListener(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.facebook.presto.mongodb.MongoSession.guessTableFields()
    2. com.facebook.presto
      MongoSession$1.load
      1. com.facebook.presto.mongodb.MongoSession.guessTableFields(MongoSession.java:508)
      2. com.facebook.presto.mongodb.MongoSession.getTableMetadata(MongoSession.java:403)
      3. com.facebook.presto.mongodb.MongoSession.loadTableSchema(MongoSession.java:189)
      4. com.facebook.presto.mongodb.MongoSession.access$000(MongoSession.java:78)
      5. com.facebook.presto.mongodb.MongoSession$1.load(MongoSession.java:137)
      6. com.facebook.presto.mongodb.MongoSession$1.load(MongoSession.java:132)
      6 frames
    3. Guava
      LocalCache$LocalLoadingCache.get
      1. com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
      2. com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
      3. com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
      4. com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
      5. com.google.common.cache.LocalCache.get(LocalCache.java:3937)
      6. com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
      7. com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
      7 frames
    4. com.facebook.presto
      LegacyConnectorMetadata.getTableHandle
      1. com.facebook.presto.mongodb.MongoSession.getCacheValue(MongoSession.java:241)
      2. com.facebook.presto.mongodb.MongoSession.getTable(MongoSession.java:169)
      3. com.facebook.presto.mongodb.MongoMetadata.getTableHandle(MongoMetadata.java:83)
      4. com.facebook.presto.mongodb.MongoMetadata.getTableHandle(MongoMetadata.java:56)
      5. com.facebook.presto.transaction.LegacyConnectorMetadata.getTableHandle(LegacyConnectorMetadata.java:71)
      5 frames
    5. presto-main
      StatementAnalyzer.visitTable
      1. com.facebook.presto.metadata.MetadataManager.getTableHandle(MetadataManager.java:287)
      2. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitTable(StatementAnalyzer.java:1053)
      3. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitTable(StatementAnalyzer.java:232)
      3 frames
    6. presto-parser
      AstVisitor.process
      1. com.facebook.presto.sql.tree.Table.accept(Table.java:50)
      2. com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:22)
      2 frames
    7. presto-main
      StatementAnalyzer.visitQuerySpecification
      1. com.facebook.presto.sql.analyzer.StatementAnalyzer.analyzeFrom(StatementAnalyzer.java:1858)
      2. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitQuerySpecification(StatementAnalyzer.java:1165)
      3. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitQuerySpecification(StatementAnalyzer.java:232)
      3 frames
    8. presto-parser
      AstVisitor.process
      1. com.facebook.presto.sql.tree.QuerySpecification.accept(QuerySpecification.java:125)
      2. com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:22)
      2 frames
    9. presto-main
      StatementAnalyzer.visitQuery
      1. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitQuery(StatementAnalyzer.java:931)
      2. com.facebook.presto.sql.analyzer.StatementAnalyzer.visitQuery(StatementAnalyzer.java:232)
      2 frames
    10. presto-parser
      AstVisitor.process
      1. com.facebook.presto.sql.tree.Query.accept(Query.java:103)
      2. com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:22)
      2 frames
    11. presto-main
      QueuedExecution.lambda$start$1
      1. com.facebook.presto.sql.analyzer.Analyzer.analyze(Analyzer.java:60)
      2. com.facebook.presto.execution.SqlQueryExecution.doAnalyzeQuery(SqlQueryExecution.java:277)
      3. com.facebook.presto.execution.SqlQueryExecution.analyzeQuery(SqlQueryExecution.java:263)
      4. com.facebook.presto.execution.SqlQueryExecution.start(SqlQueryExecution.java:227)
      5. com.facebook.presto.execution.QueuedExecution.lambda$start$1(QueuedExecution.java:68)
      5 frames
    12. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames