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Jaroslav Tulach edited comment on NETBEANS-6349 at 1/6/22, 7:22 AM: -------------------------------------------------------------------- The problem with {{CharBuffer.flip() }}can easily be fixed with: {code:java} netbeans$ git diff diff --git a/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java b/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java index dcc5c286ad24..1208cf76dbb5 100644 --- a/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java +++ b/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java @@ -44,6 +44,7 @@ import java.net.URI; import java.net.URISyntaxException; import java.net.URL; import java.net.URLEncoder; +import java.nio.Buffer; import java.nio.CharBuffer; import java.nio.channels.CompletionHandler; import java.nio.charset.Charset; @@ -513,7 +514,9 @@ public class FileObjects { return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, CharBuffer.wrap( content ) ); } else { - return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, (CharBuffer)CharBuffer.allocate( length + 1 ).append( content ).append( ' ' ).flip() ); + Buffer buf = CharBuffer.allocate( length + 1 ).append( content ).append( ' ' ); + CharBuffer flipped = (CharBuffer) buf.flip(); + return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, flipped); } } {code} feel free to apply the fix where needed. Thank you. was (Author: jtulach): The problem with \{{CharBuffer.flip()} can easily be fixed with: {code:java} netbeans$ git diff diff --git a/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java b/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java index dcc5c286ad24..1208cf76dbb5 100644 --- a/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java +++ b/java/java.source.base/src/org/netbeans/modules/java/source/parsing/FileObjects.java @@ -44,6 +44,7 @@ import java.net.URI; import java.net.URISyntaxException; import java.net.URL; import java.net.URLEncoder; +import java.nio.Buffer; import java.nio.CharBuffer; import java.nio.channels.CompletionHandler; import java.nio.charset.Charset; @@ -513,7 +514,9 @@ public class FileObjects { return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, CharBuffer.wrap( content ) ); } else { - return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, (CharBuffer)CharBuffer.allocate( length + 1 ).append( content ).append( ' ' ).flip() ); + Buffer buf = CharBuffer.allocate( length + 1 ).append( content ).append( ' ' ); + CharBuffer flipped = (CharBuffer) buf.flip(); + return new MemoryFileObject(pkgStr, nameStr, uri, lastModified, flipped); } } {code} feel free to apply the fix where needed. Thank you. > Recent builds of the module responsible for java source parsing break BC to > JDK 8 > --------------------------------------------------------------------------------- > > Key: NETBEANS-6349 > URL: https://issues.apache.org/jira/browse/NETBEANS-6349 > Project: NetBeans > Issue Type: Bug > Components: editor - Parsing & Indexing > Affects Versions: 12.5, 12.6 > Reporter: Thomas Schapitz > Assignee: Jaroslav Tulach > Priority: Critical > > There are 6 linked Issues, that all follow a common pattern, pointing to a > common cause: > * They are accompanied by an java.lang.NoSuchMethodError: > java.nio.CharBuffer.flip()Ljava/nio/CharBuffer; > * The users indicate, they are running NB 12.5+ with JDK8 > * The errors occur during parsing. > Sure enough, JDK 8 hasn't > java.nio.CharBuffer.flip()Ljava/nio/{*}+CharBuffer+{*}, > it has only java.nio.CharBuffer.flip()Ljava/nio/{+}*Buffer,*{+} which it > inherits from Buffer. > Which means: the Module in question has obviously been compiled against a > library more recent then JDK8, at least JDK9, which has this method. > > Consequences: > This and the 6 linked issues will automatically be fixed with the rollout of > NB 13, which will require JDK 11 as prerequisite anyway. > In the mean time, users may work around the problem, by immediately switching > to JDK 9+ when executing Netbeans. Note that they should still be able to > develop and build for JDKs 8 an prior. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@netbeans.apache.org For additional commands, e-mail: commits-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists